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jian bian ding xiang jiu xie qi
Author(s): 
Pages: 37-39
Year: Issue:  1
Journal: Exploration Engineering(Drilling & Tunneling)

Keyword:  纠斜偏心楔楔子带键岩心管接头定向孔下钻钻孔弯曲套管工作地区;
Abstract: <正>我队工作地区钻孔弯曲严重,曾用过多种纠斜方法,效果都较差。用偏重活动纠斜器,虽然简便,但把握性不大;下死楔子丢在井里往往留有后患。去年下半年以来,我队广大革命职工,在毛主席革命路线指引下,在钻探的实践中,研究试用了一种简便
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